DRC-2009-004064 - 0901a06880141abf

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State of Utah
GARY R. HERBERT
Govemor
GREG BELL
Lieutenant Govemor
Department of
Environmental Quality
Amanda Smith
Acting Execurive Director
DIVISION OF RADIATION CONTROL
Dane L. Finerfrock
Director
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September 14, 2009
CERTIFffiD MAIL
(Retum Receipt Requested)
Mr. Steven D. Landau
Manager of Environmental Affairs
Denison Mines (USA) Corp.
1050 l?"'Street, Suite 950
Denver, CO 80265
Dear Mr. Landau:
SUBffiCT: September 1, 2009 White Mesa Mill Discharge Minimization Technology (DMT)
Perfonnance Standard Monitoring Report, 2nd Quarter, 2009; April 7, 2009 DRC
Letter: NOTICE OF NONCOMPLIANCE [NONC], Upcoming Permit
Modifications and Potential for Future Enforcement Action; Report Approval
We received the subject 2nd Quarter, 2009 DMT report by fax on September 1, 2009. We have
reviewed the report, and have the following comments:
It appears all the items raised in the subject DRC letter of April 7, 2009 have been addressed in
the subject 2""^ quarter report. Therefore, this quarterly report is hereby approved.
As you are aware as required by the Part I.D.3.b.l of the permit, "the Permittee shall at all times
maintain the average wastewater head in the slimes drain access pipe to be as low as reasonably
achievable in each tailings disposal cell, in accordance with a DMT Monitoring Plan. Compliance
shall be achieved when the average annual wastewater recovery elevation in the slimes drain
access pipe, determined pursuant to the currently approved DMT Monitoring Plan, meets the
conditions in Equation 1 .. ." We note that pursuant to Part I.D.3(b) of the upcoming Ground
Water Discharge Permit modification, that Cell 2 compliance in this matter will be detennined
after submittal of the 4* Quarter, 2010 DMT Monitoring Report.
168 North 1950 West • Salt Lake City. UT
Mailing Address: P.O. Box 144850 • Salt Lake City, UT 84114-4850
Telephone [phone] • Fax [phone] • T.D.D. [phone]
www.deq.utah.go-,,
Prinled on 100% recycled paper
Page 2
If you have any questions on the above, please contact Mr. Rupp.
UTAH WATER QUALITY BOARD
Dane L. Fii«e)rfrock
Co-Execufrve Secretary
DAR:dr
F:\drupp\DUSA\GWDPrclated docs\DMT\2009 2nd Qtr AprvlLtr.doc
Hie: DMT Quarterly Monitoring Reports 137A